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1 definition by gasx91

 
1.
LBD
Loud But Deadly. Opposite of Silent But deadly. In refrence to flatulence. These bad boys are powerful and filled with stank, so much you might want to vomit.
Betsy: Dude, I'm gasey and theres nothing silent about it.
Laura: Gross, LBD. I'm out dude.
by gasx91 March 08, 2011